Sikalastic 601 BC (US) Durable and versatile base coat for Sikalastic RoofPro roofing and waterproofing systems

Transcription

1 Product Data Sheet Edition Sikalastic 601 BC Sikalastic 601 BC (US) Durable and versatile base coat for Sikalastic RoofPro roofing and waterproofing systems Description Where to Use Advantages Approvals Sikalastic 601 BC (US) is a cold applied, highly elastic, aliphatic, single component, moisture-triggered polyurethane base coat designed for easy application as part of Sikalastic RoofPro roofing and waterproofing systems. Sikalastic RoofPro 10 and 15 year systems, including Sikalastic RoofPro Direct, Recover, Inverted, Green and Built Up systems for both new construction and refurbishment Ideal for roofs displaying complex details and geometry or when accessibility is limited. Effective and cost efficient life cycle extension of existing roofs. Highly reflective Sikalastic 621 TC (US) in White (RAL 9016) suitable for cool roofs and solar roof assemblies. See Sikalastic 621 TC (US) Product Data Sheet. Proven technology with over 25 year track record Single component - no mixing and ready to use Fully reinforced with highly conformable Sika Reemat or Sika Fleece Moisture triggered chemistry that is rapidly weatherproof after application Highly elastic and crack bridging Seamless and fully adhered Vapor permeable Resistant to UV and common atmospheric chemicals FM Approval Standard 4470 for Class 1 Roof Covers ASTM E Spread of Flame meets Class A at a slope of 1 in 12 Simulated wind uplift pull testing meets Class Simulated hail damage testing meets rating of SH Miami-Dade County NOA for Roof Maintenance Coating Systems and Roof Systems over Concrete and Steel Decks USGBC LEED rating: Conforms to LEED SS Credit 7.2 for Heat Island Effect - Roof with SRI >/=78 Energy Star approval for Sikalastic 621 TC (US) White (RAL 9016) Meets ASTM D : Standard Specification for Liquid-Applied, Single-Pack, Moisture-Triggered, Aliphatic Polyurethane Roofing Membrane. Areas of Application Sound concrete and cementitious screed, metals, wood, modified bitumen, mineralized felt, EPDM, hypalon, TPO, sprayed polyurethane foam, brick and stone, slate and tile, and existing liquid applied membranes. Packaging Colors 5 gal. pails Oxide red Typical Data (Material and curing 73 F (23 C) and 50% R.H.) RESULTS MAY DIFFER BASED UPON STATISTICAL VARIATIONS DEPENDING UPON MIXING METHODS AND EQUIPMENT, TEMPERATURE, APPLICATION METHODS, TEST METHODS, ACTUAL SITE CONDITIONS AND CURING CONDITIONS. Shelf Life Storage Product Conditioning Chemical Base VOCs 6 months from date of production if stored in original, unopened and undamaged sealed packaging in dry conditions at temperatures between 40 and 85 degrees F (4-30 degrees C). Store dry at degrees F (4-30 degrees C). Condition material to degrees F (18-30 degrees C) before using. Single component, moisture-triggered, aliphatic polyurethane 212 g/l Density lbs/gal (1.36 lg/l) (all values at +23 degrees C) Solids Content 78.0 % by volume / 84.3 % by weight Flash Point 138 degrees F (59 degrees C) Service Temperature -22 to 176 degrees F (-30 to 80 degrees C) intermittent Reinforced with Sika Reemat RoofPro Metal RoofPro 10 RoofPro 15 RoofPro 20 RoofPro 25 Tensile Strength (ASTM D2370) 1400 psi 1300 psi 1350psi 1750 psi 1500 psi Tear Strength 3750 psi 4750 psi 6800 psi 7500 psi Elongation (ASTM D2370) 250% 35% 45% 50% 75% Vapor Permeability 1.18 perms 0.56 perms 0.55 perms 0.49 perms 0.32 perms

2 Chemical Resistance Strong resistance to a wide range of reagents, including paraffin, petrol, fuel oil, white spirit, acid rain, detergents and moderate solutions of acids and alkalis. Some low molecular weight alcohols can soften the material. Contact Technical Service for specific recommendations. Salt spray to ASTM B117 (1000 hours continuous exposure) and prohesion testing to ASTM G85-94: Annex A5 (1000 hours cyclic exposure. Application Cementitious substrates (e. g. Concrete) Substrate Evaluation New concrete should be allowed a minimum of 14 days before priming ideally 28 days and should have a minimum tensile bond stength of 1.4 mpa (200 psi). Inspect the concrete, including upstands and all areas should be hammer tested. Concrete must be suitably finished,preferably by wood float or steel pan. A power float finish is acceptable where the surface is prepared to avoid laitance (a tamped finish is not acceptable). The surface finish must be uniform and free from defects such as laitance, voids or honeycombing. Surface Preparation Gypsum based roof boards Roof boards should be clean, dry and dust free. Damaged or contaminated boards should be removed and replaced. Brick and stone Mortar joints must be sound and preferably flush pointed. Ceramic tiles Ensure all tiles are sound and securely fastened, replacing obviously broken or missing sections. Asphalt Asphalt contains volatiles which can cause bleeding and slight non-detrimental staining. The asphalt must be carefully assessed for moisture and/or air entrapment, grade and surface finish prior to any coating works being carried out. Bituminous felt Ensure that Bituminous felt is firmly adhered or mechanically fixed to the substrate. Bituminous felt should not contain badly degraded areas. Bituminous coatings Bituminous coatings should not have sticky or mobile surfaces, volatile mastic coatings, or old coal tar coatings. Metals Metals must be in sound condition. Wooden substrates Plywood and timber based panel roof decks must be in good condition, firmly adhered and mechanically fixed. All plywood should be identified as conforming to PS 1 for construction and industrial plywood by grade, APA (American Plywood Association) trademark, or equivalent. For maximum smoothness, EXT Type APA, Grade A-C should be used, and the A side should be positioned to receive the coating. Plywood decks to receive coating directly should be at least 1/2 inch thick and attached and supported according to APA guidelines, using only non-rusting screw, spiral or coated nail type fasteners. A good practice would be to recess or counter sink fasteners 1/8 to 1/4 inch and fill with Sikaflex sealant. Suitable edge support to prevent differential deflection between panels should be provided. Panel edges should be tongue and groove or supported on solid blocking. Space panels 1/8 to 3/16 inch at panel ends, and fill joints flush with Sikaflex sealant. Paints and coatings Ensure the existing material is sound and firmly adhered. Existing Sikalastic RoofPro System The existing Sikalastic RoofPro System should still be soundly adhered to the substrate. Concrete and cementitious Cementitious or mineral based substrates must be prepared mechanically using abrasive blast cleaning or scarifying equipment to remove cement laitance and to achieve an open textured surface (CSP 3-5 per ICRI guidelines). Loose friable material and weak concrete must be completely removed and surface defects such as blowholes and voids must be fully exposed. The amount of embedment coat required may increase over rough or highly porous surfaces. Repairs to the substrate, filling of joints, blowholes/voids and surface levelling must be carried out. Consult Sika for product recommendations based on project requirements. High spots must be removed by grinding or similar method. Outgassing is a naturally occurring phenomenon of concrete that can produce pinholes in applied coatings. The concrete must be carefully assessed for moisture content, air entrapment, and surface finish prior to any coating work. Particular requirements for priming must also be considered. Installing the membrane either when the concrete temperature is falling or stable can reduce outgassing. It is generally beneficial, therefore, to apply the embedment coat in the late afternoon or evening. Gypsum based roof boards Roof boards should be clean, dry and dust free. Damaged or contaminated boards should be removed and replaced. Brick and stone Power wash and use biodegradeable non-sudsing detergent with clean water rinse as required. Ceramic tiles Tiles must be well adhered to the substrate. Otherwise they need to be removed. Power wash and use biodegradeable non-sudsing detergent with clean water rinse as required.

3 Asphalt Power wash and use biodegradeable non-sudsing detergent with clean water rinse as required. All major cracks should be sealed to allow continuity of the Sikalastic RoofPro system. Asphalt must be carefully assessed for moisture and/ or air entrapment, grade and surface finish prior to any coating works being carried out. Bituminous felt Power wash and use biodegradeable non-sudsing detergent with clean water rinse as required. Treat blisters by star cutting and removing any underlying water. Allow to dry and re-adhere using suitable adhesive. Bituminous coatings Remove any loose or degraded coatings. Metals Ferrous metals should be thoroughly cleaned by grinding or blast cleaning prior to priming. Where blasting is not permitted, clean metal preparation by pin hammer or other suitable means is acceptable. Non-ferrous metals are prepared as follows. Remove any deposits of dust and oxidation and abrade to bright metal. Wire brushing can be used for soft metal such as lead. The surface must be clean and free from grease which, if present, must be removed with a proprietary solution. Wash with detergent, rinse and dry. Application Wooden substrates Timber and timber based panel roof decks may require a complete layer of Sikalastic Baseply bonded using suitable adhesive prior to the application of the chosen system. The substrate should then be treated as a felt roof. Small timber protrusions and suitable decks may be treated directly, provided that the timber is of exterior quality, e.g. plywood, oil tempered hardboard, etc. Paints/Coatings Remove any loose or degraded coatings. Ensure the surface is clean and free from grease. Sikaplan /Sarnafil membranes Clean membranes with non-sudsing detergent and clean water rinse. Consult Sika regarding primer. Existing Sikalastic RoofPro Systems Clean the membrane using a water jet at approximately 140bar (2000 psi) and biodegradeable non-sudsing detergent with clean water rinse. Allow to dry. Priming Refer to Priming Guide to select primer for properly evaluated and prepared substrate. Refer to separate Product Data Sheet for selected primer for application methods, coverage rates, cure times and recoat windows. Always allow primer to cure thoroughly before applying detail or base coat. Substrate Sikalastic RoofPro Priming Guide Remark CONCRETE PRIMER DTE EPOXY Bonding CONCRETE (1) p p p p EP PRIMER/ SEALER LIGHTWEIGHT STRUCTURAL CONCRETE (1) p p GYPSUM BASED ROOF BOARDS p p BRICK, STONE (3) p p BITUMINOUS SUBSTRATE -asphalt, bituminous felts, bituminous coatings, granulated or smooth SBS & APP cap sheets (2,3) p SINGLE PLY ROOFING MEMBRANES -HYPALON, TPO, EPDM, PVC (3) p ROOF TILES (UNGLAZED) (3,4) p p POLYESTER (GLASS FIBER REINFORCED) (3) p p POLYURETHANE FOAM- sprayed or slab stock p p METALS -aluminum, galvanized, cast iron, copper, lead, brass, stainless steel, steel, zinc (3) p PRE-COATED METAL (3) p PAINTS - paints & coatings (3) p - aluminized solar reflective coatings (3) p WOOD - TIMBER & PLYWOOD (5) p p p Consult Sika (1) New cementitious substrates must be Portland base and be cured min. 14 days. (2) The presence of volatiles may cause discoloration of Sikalastic if not properly primed. (3) Surface evaulation and field adhesion testing. (4) Glazed tile consult Sika. (5) Pressure treated lumber consult Sika

4 Detailing Non-structural cracks up to 1/16 inch - Detail application not necessary. Apply embedment/base coat per below. Sikalastic RoofPro System Guide Non-structural cracks between 1/16 inch and 1/4 inch - Rout and seal with Sikaflex sealant. Apply mil detail coat embedded with 3 inch Sika Flexitape Heavy centered over crack. Apply embedment/base coat per below. Cracks and joints between 1/4 inch and 1 inch - Rout and seal with Sikaflex sealant. Apply bond breaker tape sufficient to span width of crack or joint followed by mil detail coat embedded with 6 inch Sika Flexitape Heavy centered over crack or joint. Apply embedment/base coat by terminating Sika Reemat at edges of crack or joint overlapping Sika Flexitape Heavy a minimum of 2 inch on both sides. Joints greater than 1 inch - Treat as expansion joint. Consult Sika for recommendations. Metal, plywood and existing butiminous or single-ply seams - Apply mil detail coat embedded with 3 or 6 inch Sika Flexitape Heavy centered over seam. Apply embedment coat per below. Transitions between dissimilar materials - Apply mil detail coat embedded with Sika Flexitape Heavy centered over edge. Apply embedment coat per below. Embedment/Base Coat Mixing not required. Apply either Sikalastic 601 BC or Sikalastic 621 TC per RoofPro System Guide at 45 mils with a 1/2 inch nap phenolic resin core roller. Material can also be squeegee or spray applied, in which case it should be backrolled prior to embedding Sika Reemat. Place Sika Reemat in wet base coat overlapping seams a minimum of 2 inches (place frayed edge over cut edge of roll) and apply wet roller to topside to saturate completely. After approximately 5 minutes the binder will begin to dissolve allowing the fiber strands to conform to irregular surfaces. Do not over work once the fibers have conformed to the substrate. Allow to cure 12 hours at 70 degrees F and 50 % RH or until tack free before top coating. Keep clean and dry and apply top coat within 7 days. If window exceeded clean with non-sudsing detergent and clean water rinse and allow to dry prior to application of Sika Reactivation. Top Coats Mixing not required. Apply Sikalastic 621 TC at the coverage rate in the RoofPro System Guide with a 1/2 inch nap phenolic resin core roller. Material can also be squeegee or spray applied, in which case it should also be backrolled. In the case of RoofPro 25 allow the first top coat to cure 12 hours at 70 degrees F and 50% RH or until tack free before applying second top coat. On top of the complete RoofPro system additional top coats may be applied with aggregate for slip resistance - consult Sika for recommendations. Keep clean and dry and apply top coat within 7 days. If window exceeded clean with non-sudsing detergent and clean water rinse and allow to dry prior to application of Sika Reactivation. RoofPro Metal RoofPro 10 RoofPro 15 RoofPro 20 RoofPro 25 Substrates Qualifying Metals Concrete or cementitious, metals, wood, single-ply or bituminous, spray foam, stone or tile Detailing Required - see Substrate Priming Guide Sika Flexitape Heavy centered over seams, transitions and properly treated cracks and joints Reinforcement Local with Sika Flexitape Sika Reemat Standard Sika Reemat Premium embedded in base over entire surface 601 BC (US)* 35 mils wet - 45 sf/gal. 45 mils wet - 35 sf/gal. 45 mils wet - 35 sf/gal. 621 TC (US) 20 mils wet - 80 sf/gal. 30 mils wet - 53 sf/gal. 30 mils wet - 53 sf/gal. 45 mils wet - 35 sf/gal. 621 TC (US) 20 mils wet - 80 sf/gal. 30 mils wet - 53 sf/gal. 30 mils wet - 53 sf/gal. 621 TC (US) 30 mils wet - 53 sf/gal. Total Film Thickness 32 mils dry 52 mils dry 59 mils dry 61 mils dry 84 mils dry * May be substituted with Sikalastic 621 TC (US) Limitations To avoid dew point conditions during application, relative humidity must be no more than 95% and substrate temperature must be at least 5 degrees F (3 degrees C) above measured dew point temperatures. Minimum ambient temperature during application and curing of material is 40 degrees F (5 degrees C); maximum is 95 degrees F (35 degrees C). Sufaces temperatures must be no higher than 140 degrees F (60 degrees C). Frequent monitoring of ambient and substrate temperature should always be done when applying polyurethane coatings. Note that low temperatures and low humidity will slow down the cure, and high temperatures and high humidity will accelerate it. Do not apply on substrates with moisture content greater than 4% by weight. Minimum age of concrete must be days depending on curing and drying conditions. Do not thin with solvents. Do not store materials outdoors exposed to sunlight and moisture for prolonged periods. Do not apply to porous or damp surface where moisture vapor transmission will occur during application and cure. Substrate must be dry prior to application. Do not apply to a frosted, wet or damp surface. Allow sufficient time for the substrate to dry after rain or inclement weather, as there is the potential for bonding prolems.

5 Certificate # FM Caution Handling & Storage Clean Up First Aid On substrates likely to exhibit outgassing apply during falling ambient and substrate temperature. If applied during rising temperature pinholing may occur. Use sunglasses with UV filter when applying highly reflective Sikalastic 621 TC White (RAL 9016). Do not use for indoor applications. Turn off and seal air intake vents during application and cure. Not recommended for direct exposure to heavy or frequent foot traffic. Do not apply cementitious products, such as tile mortar directly onto Sikalastic 601 BC. See Sikalastic 624 AR Product Data Sheet. Areas with high movement or irregular substrates require a complete layer of Sikalastic Baseply. Any repairs required to achieve a level surface must be performed prior to application (consult a Sika representative for guidance on various product solutions). Surface irregularities may reflect through the cured system. When applying over existing coatings or membranes compatibility and adhesion testing is recommened. Opening to traffic prior to cure may result in loss of aggregate or permanent staining and subsequent premature failure. On grade, unvented metal pan, split/sandwich slab and buried membrane conditions as well as light weight concrete should not be coated with Sikalastic RoofPro systems. Do not subject to continuous immersion. Precautions should be taken to prevent odors and/or vapors from entering the building/structure, including but not limited to turning off and sealing air intake vents or other means of ingress for odors and/or vapors into the building/structure during product application and cure. WARNING: COMBUSTIBLE, IRRITANT, SENSITIZER: Contains 2-methoxy-1-methylethyl acetate (CAS: ), triphenyl-phosphate (CAS: ), and 3-isocyanatomethyl-3,5,5-trimethylcyclohexyl isocyanate (CAS: ). Keep away from heat, sparks, electrical equipment, and open flame. DO NOT SMOKE. Use only in well ventilated areas. May cause eye irritation. Harmful in inhaled. May cause allergic skin/respiratory reaction after prolonged contact. May cause gastrointestinal disturbance. Reports have associated repeated and prolonged exposure to some of the chemicals in this product with permanent brain, liver, kidney and nervous system damage. Intentional misuse by deliberate concentration and inhalation of vapors may be harmful or fatal. WARNING! This product contains a chemical known in the State of California to cause cancer. Keep away from heat, sparks, sunlight, electrical equipment or flame. VAPORS MAY IGNITE AND EXPLODE. DO NOT SMOKE. Open doors and windows during use. Use adequate local and mechanical ventilation. Wear protective equipment (chemically resistant gloves/goggles/clothing) to prevent direct contact with skin and eyes. Use properly fitted NIOSH vapor cartridge respirator if ventilation is poor. Wash thoroughly with soap and water after use. Remove contaminated clothing after use. Store product in tightly sealed containers in a cool, dry well ventilated area at temperatures between 40 F and 85 F away from ignition sources.use explosion-proof electrical (ventilating, lighting and material handling) equipment. Use non-sparking tools. Take precautionary measures against electrostatic discharges. To avoid fire or explosion, dissipate static electricity during transfer by grounding and bonding containers and equipment before transferring material. In case of spill, eliminate all ignition and heat sources, if safe to do so. Ventilate area. Open doors and windows. Wear chemical resistant gloves/goggles/clothing. In absence of proper ventilation use properly fitted NIOSH respirator. Confine spill, collect using noncombustible absorbent material and place in properly sealed container. Dispose of excess product in accordance with applicable local, state and federal regulations. Eyes Hold eyelids apart and flush thoroughly with water for 15 minutes. Skin Remove contaminated clothing. Wash skin thoroughly for 15 minutes with soap and water. Inhalation Remove to fresh air. Ingestion Do not induce vomiting. Dilute with water.contact physician. In all cases contact a physician immediately if symptoms persist. KEEP CONTAINER TIGHTLY CLOSED KEEP OUT OF REACH OF CHILDREN NOT FOR INTERNAL CONSUMPTION FOR INDUSTRIAL USE ONLY All information provided by Sika Corporation ( Sika ) concerning Sika products, including but not limited to, any recommendations and advice relating to the application and use of Sika products, is given in good faith based on Sika s current experience and knowledge of its products when properly stored, handled and applied under normal conditions in accordance with Sika s instructions. 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